Automatic can-head-coating machine.



No. 684,275. Patented Oct. 8, I90l. A. W. LIVINGSTON.

AUTOMATIC CAN HEAD COATING MACHINE.

(Application filed Jan. 11, 1901.)

3 Sheets-Sheet I.

(No Model.)

No. 684,275. Patented Oct. 8, i901.

' A. W. LIVINGSTON.

AUTOMATIC CAN HEAD COATING MACHINE.

(Application filed Jan. 11, 1901.)

3 Sheets-Sheei 2.

(No Model.)

INE xcnms PETERS ca. wom-Ln'ua. wnsmup'ron. n. c.

Patented 001i. 8, |9OI. A. W. LIVINGSTON.

AUTOMATIC CAN HEAD COATING MACHINE.

(Application filed. (Inn. 11, 1901.)

3 Sheets-Sheet 3.

(No Model.)

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ZUNITED STATES PATENT ()FFIGE.

ANDREiV \V. LIVINGSTON, OF SAN FRANCISCO, CALIFORNIA.

AUTOMATIC CAN-HEAD-COATING MACHINE.

SPECIFICATION forming part of Letters Patent No. 684,275, dated October 8, 1901. Application filed January 11, 1901. Serial No. 42,889. {No model.)

To all whom, it nut/y concern:

Be it known that 1, ANDREW WV. LIVING- STON, a citizen of the United States, residing in the city and county of San Francisco, State of California, have invented an Improvement in Automatic Can-Head-Ooating Machines; and I hereby declare the following to be a full, clear, and exact description, of the same.

My invention relates to improvements in machines for coating the flanges of can-heads with a sealing compound preparatory to the subsequent insertion of such heads upon canbodies.

It consists, essentially, of a reservoir carried upon a revolving support, a feed roller dipping into the reservoir, a distributingroller adapted to bear upon the side to be coated of the flange of the head,a roller adapted to bear upon the opposite side of said flange, means by which these rollers and heads are revolved, lneansby which the head is released therefrom and delivered in a vertical position into a flouting-trough, an endless belt or chain by which it is made to travel through this trough, and of details more fully to be hereinafter set forth.

Having reference to the drawings, Figure 1 is a plan of the coating-machine. Fig. 2is a vertical section of the same. Fig. 3 is an enlarged plan of the sliding fork and rollers for holding can-heads in position for coating. Fig. 4 is a front view of the same and a section through the reservoir. Fig. 5 is a side view of the foregoing. Fig. 6 is a portion of a similar view to Fig. 5, showing how a can is held in position for coating. Fig. 1 is a plan of the flouring-machine. Fig. 2 is part section and part longitudinal elevation of Fig. 1. Fig. 3 is a vertical transverse section on the line a: a; of Fig. 2.

My device is intended for the treatment of can-heads such as are crimped and hermetically sealed upon the can-bodies at one operation. Where can-bodies and can-heads are thus put together, the heads are usually provided with an annular flange which fits upon a flange projection on the can-bodies. A deposit of some sealing preparation is placed upon the lower side of the can-head flanges, so that when the head isinserted on the body and the flanges of the two parts properly crimped a hermetic joint is formed.

It is the object of my invention to provide a self-regulating machine by which this sealing preparation may be run upon the flanges and which will do the work with sufficient rapidity and at the same time be absolutely accurate and uniform in its results.

A represents a standard having a crosshead a, upon which the coating mechanism is supported. 2 is a fixed vertical shaft secured in this standard, having a disk 3 upon the sleeve 4 revoluble about it. Motion is imparted to this disk from the main drive-shaft 5 by means of suitable gearing 5. An annular reservoir 6,-in which is contained the sealing compound, is carried and secured upon the disk. A cover or lid fits over this reservoir and is preferably made in segments 7, each segment carrying a separate coating apparatus. Upon each of the segments 7 is a projection 8, adapted to allow the stem of a fork 9 to be moved radially. The ends of the members of the fork are provided with grooved rollers 10, against which the edge of the can-head is to be pressed. Guidepins 17 upon the cover aid the rapid placing of a can-head in position against the rollers.

A projection 11 is provided upon the fork, and a screw 12 limits the inward radial movement of the fork. A lever 13, fulcrumed at 14 upon the segmental cover, carries at its end a roller 15. A spring 16 serves to keep this lever suificiently elevated as always to run upon the annular cam-plate 29, fastened upon an overhead support 30, which latteris fixedly secured to the shaft 2,. Directly beneath this roller is a slot in the cover,'through which a second roller 18 is adapted to be raised whenever the former is depressed. It is between these two rollers that the flange of the can-head is gripped and revolved, and it is this lower roller that deposits the sealing compound upon the flange. The manner in which this is done and the means by which these rollers act simultaneously are as follows: On the under side of the cover is a lever 19, fulcrumed at 20 and carrying at one end the above-mentioned roller 18. A pendent projection 21 carries at its lower end a roller 22, which roller is also tangential with the roller 18. The roller 22, which I will designate as the feed-roller, is partly immersed in the sealing compound.

The roller 18 consequently acts as a distributingroller. Upon one of the members of the'fork 9 is a projection 23, and a pin 24 is slidable therein. This pin extends through a slot 24 in the cover, and when the fork is moved toward the axle 2 this'pin is carried with it and will rest upon the end of the lever 19, and consequently any downward movement then of the pin Will cause the rollers 18 and 22 to be lifted. This inward movement of the fork is so regulated as to bring the pin directly beneath the lever 13. A spring 25 acts to hold the pin up and out of contact with the lever 19, carrying the distributing-roller, until pressure has been brought to bear upon the pin by means of the lever 13. A fixed feed-table 25 is supported upon a standard 26 upon; the cross-head a and has a guideplate 27. As a can-head is placed against the pins 17 and the rollers of the fork the machine in its revolution brings this head against the guide-plate 27 ,which latter pushes the head and the fork inwardly and brings the pin 24 directly beneath the lever 13 and above the lever 19 and the flange of the head between the two rollers and 18. As the mechanism continues to revolve the roller 15 passes on to the cam portion of the annular plate 29. The pressure exerted by this cam immediately acts upon the impinging roller 15 and the distributing-roller 18 to cause them to press tightly upon the opposite sides of the flange of the can-head and by their revolution to cause the can-head to revolve. The contact of the distributing-roller with the feedroiler 22 likewise causes the latter to turn, and'a uniform annular deposit of the liquid orsemiliquid sealing compound is made upon the under edge of the flange. The length of the cam portion of the plate 29 is sufticient to-insure a proper coating. The moment the impinging roller 15 leaves the end of this cam portion the pressure upon the head is released, the pin 24 is lifted by its spring, and the distributing and feed rollers cease revolving and drop again to their normal position. The coating thus completed, the head is still carried'forward as the reservoir continues its revolution. The inner cam end 31 of the stem of the fork 9 strikes against a fixed projection 32, causing the fork to move outward to the position it had before the canhead was first inserted. A fixed guide 33 engages the can-head and directs it into-a channel33, wherein the position of the can-head is changed from horizontal to vertical, so that in the second operation of flouring the flange, as it is called, the can -head will travelon its edge. The can-head as it comes from the coating-table is not in a condition for ready handling, as this sealing compound is usually of some sticky material and should in most cases be further treated before the operation-is complete. This treatment may be effected invarious ways. I have shown the following means: The runway 33, into which the can-head first drops, narrows towith the cans.

ward the throat, so that the can-head'is di rected into a vertical position. An extension Z 7 34 of this runway has a longitudinal slot 35, through which the can-head drops, so that its lower edge rests in the flouring-trough 36 and is supported centrally by the guide-plates 37 upon either side of the slot 35. may be adjusted in relation to each other to allow for can-heads of various sizes and according to varying depths of flanges. The can-heads thus in position are made to travel on edge through the trougl'uso that all the coated peripheries will be properly floured, by means of an endless chain or belt 38, par allel and in the same plane with the slot and with the inner edge of the stationary trough.

Carried thus beneath the chain the heads F finally enter a runway 39, whence they'are delivered as desired to any suitable form'of;

drier.

.In order that a sufficient quantity of'fiour may always be supplied to the trough and that this flour may be banked against the side latter dip into the trough and travel at the" same rate of speed and in the same direction Each'scoop has a cut-out portion 43 adjacent to the can-head side oftlie trough, so that enough of the flour is thrown or banked against that side to submerge the head to the required mark. The scoops pass These plates loo through the bin 44 on their return movement '7 and replenish the supply of flour in the trough. able sealing compound for coating these flanges, such as the usual pastes, solder, &c.

The machine is adaptable for can-heads'of.

various shapes and sizes.

It is the intention to use any Slliilfl Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A device for coating the peripheral edges of can heads consisting of a reservoir containing the coating material, meansfor revolving the reservoir about a vertical axis, rollers between which the edges of thecanhead are caused to pass, and means for supplying and distributing the coating material upon one of said rollers.

2. A device for coating the peripheral edges of can-heads consisting of rollers between which the edge of the can-head is presented,

means by which the can-head is revolved with 7 its edge between said rollers, a reservoir containing a coating material, means for revolving the reservoir, and means for applying said: material to one of the rollers.

3. A device for coatingthe peripheral edges- 9 Q of the trough along which the head travels,.I r

therein while revolving to present its entire periphery, and means whereby the coating material is delivered from the reservoir to one of the rollers.

at. A device for coating the peripheral edges of can-heads consisting of an annular reservoir and means for revolving about a vertical axis, a feed-table and guide contiguous to the periphery of said reservoir, one or more pairs of rollers carried in unison with the reservoir, guides by which the can-heads are presented with their peripheral edges between the rollers, and means for transferring the coating material from the reservoir to one of the rollers.

5. A means for coating the flanges of canheads comprising a roller upon which the flange of a head is adapted to rest, and by which the coating is applied thereto, a horizontally-revoluble reservoir in which the coating material is contained, a second roller adapted to impinge on the side of the flange opposite to the first roller, and means by which these rollers and the head are revolved.

6. A means for coating the flanges of canheads comprising a horizontally-revoluble reservoir, a roller adapted to dip into the coating material within the reservoir, a distributing-roller therefor, a third roller between which and the distributing-roller a can-head flange is adapted to be held, and means whereby these rollers and the can-head are made to revolve.

7. In a canhead-ooating machine, thecombination of a reservoir, a lever carrying at one end a roller adapted to dip into the coating material, a second or feed roller revoluble in the plane of the first roller, a third roller carried at the end of a lever-arm and which is adapted to impinge upon the side of the flange opposite to the second-named roller, connections whereby the two first-mentioned rollers are raised simultaneously with the downward movement of the third roller, and means by which the rollers and the can-head are revolved.

8. In a can-headcoating machine, the combination with a reservoir of a forked guide carrying rollers at the end of its two members and against which the edge of a can-head is to be pressed, oppositely-disposed rollers between which the flange of the can-head is adapted to be held and revolved, and a third or feed roller in a plane and revoluble with the lowermost of these rollers.

9. In a can-head-coating machine, the combination of a reservoir, a forked guide transversely disposed above this reservoir and having rollers against which the edge of a canhead may be pressed and held in position, an arm carrying a roller which is adapted to rest upon the upper side of the flange of a canhead, a lever carrying at one end a roller which is adapted to support the opposite side of the flange by which the coating material is applied thereto, connections between said arm and lever whereby said downward movement of the former as the impinging roller is brought upon the can-head flange, causes the roller upon the lever to be raised and the canhead firmly held between said rollers, and means whereby these rollers and the can-head are revolved.

10. The combination in a can-head-coating machine of a vertical shaft, an annular reservoir revoluble about said shaft, one or more pairs of rollers carried in unison with the reservoir, guides by which the can-heads are presented with their peripheral edges between the rollers, the lower roller of each of said pairs carried at the end of a lever, and adapted to apply the coating to the can-head, the upper roller of each of said pairs carried upon a pivoted arm, an annular cam upon which these upper rollers are adapted to travel, and by which these upper rollers are made to impinge upon the edge of the canhead, and means whereby the lower rollers are raised simultaneously and made to bear upon the under side of the heads.

11. In an automatic can-head-coating machine, the combination of an annular reservoir revoluble about a vertical axis, one or more pairs of rollers carried in unison upon the reservoir, a forked guide, in conjunction with each of said pairs of rollers, by which the peripheral edges of the can-heads are supported between the rollers, means by which these rollers are made to impinge upon opposite sides of the flange of the can-head, and

by which the rollers and the head are revolved, and means whereby the head is released from the rollers.

12. In an automatic cau-head-coating machine, the combination with an annular reser' voir revoluble about a vertical axis, one or more pairs of rollers carried in unison upon the reservoir, forked guides by which the can-heads are supported with their peripheral edges between the rollers, means for holding the heads between the rollers and applying the coating to the periphery of the head, said forked guides slidable radially of the reservoir and each having a cam extension adapted to engage a fixed projection in the revolution of the reservoir, causing the fork to move outwardly and carry the head from between the rollers.

13. In a device for coating the peripheral edges of can-heads, an annular reservoir revoluble about a vertical axis, rollers carried thereon between which the edges of the canheads are presented and revolved, and by which the coating. is applied to the heads,

guides by which the can-heads are retained in position between the rollers, said guides movable radially of the reservoir, means by which the pressure of the rollers on the heads is relieved, means by which the radial guides are made to move outwardly, carrying the heads from between the rollers, and a guide whereby the can-heads are delivered into a flouring-trough.

14. The combination in a device for coating the peripheral edges of can-heads, of a horizontally-revoluble reservoir adapted to contain the coating material, a revoluble can-head carrier, means for distributing the coating material from the reservoir to the can-heads, and a means for flooring or dusting said coating, said means consisting of a trough into which the can-heads are delivered in-a vertical position,and through which the heads are made to travel on edge, and to present their entire periphery to the action of said flooring.

15. The combination in a device for coating the peripheral edges of can-heads, of a horizontally-revoluble reservoir adapted to contain the coating material, a revoluble can-head carrier, means for distributing the coating material from the reservoir to the can-heads, and a trough into which the heads after they have been coated are delivered in a vertical position, guides by which theheads aremaintained in such vertical position, and means whereby the headsupon their edges are made to travel through this trough.

16. The combination in a device for coating the peripheral edges of can-heads of a flouring-trough into which the heads are delivered after they have been coated, guides whereby these heads are directed into a ver tical position, and maintained in that position, an endless carrier above and parallel with said trough and against which the-edges 'ofthe'heads rest and whereby they are car-' ried through the trough and means whereby the flouring material is delivered into said trough.

17. In a device for coating the peripheries of can-heads, a means for flouring said heads consisting of a trough, containing thefiouring material, an endless carrier having scoops projecting into the trough whereby the flouring material is delivered thereto, a second endless carrier parallel with and above said trough whereby the coated can-heads delivered into said trough in a vertical position are made to revolve and travel through said trough.

18. An automatic can head-coating maester;

chine consisting in the combination of an annularreservoir-revoluble aboutavertical axis, 59 a segmentally-divided cover for said resera g voir, a plurality of pivoted arms carrying impinging rollers, an annular cam upon which these rollers travel, means by which these:

rollers are held in contact with said cam,a

plurality of distributing rollers, each arranged below and in the same plane with 'a corresponding impinging roller, said'distrib' f uting-rollers carried at the end of centrallyf ulcru med levers,a'feed-roller tangential with .60 I

each of said distributing-rollers, and by which the coating material is delivered to these dis 1 tributing-rollers, means whereby the periph= eries of can-heads are presented between the pairs of said impinging and dist-ributing'rollk ers,guides slidable radially of the reservoir by which the heads are retained in position between the rollers, a pin carried;byeachguide-' and adapted by a downward'movem'ent of an 7 arm carrying an impinging roller to'actuat'eqq j a lever carrying a corresponding distributk; ing-roller whereby the can-head is grasped" and revolved between these rollers, means by which this pressure is released, and the radial J guides moved outward, a fixed guide where by the heads are delivered into a runway of thetrough, and against the peripheries of".

the can-heads, horizontal guides bywhichthe? heads are retained in verticalposition in said- Q TV trough,an endless carrier adapted to rest upon the peripheries of'the heads, and where f, by said heads are made'to travellthrou'gh'the: 1 V

trough, and means by which the heads'are' delivered from the machine.

In witness whereof 'I have hereunto set my hand.

ANDREW W. LIVINGSTON. Witnesses:

S. H. NOURSE, JESSIE O. BRODIE. 

